doc: use esdoc

Author: h13i32maru

esdoc.json

@@ -4,5 +4,15 @@
   "test": {
     "type": "mocha",
     "source": "./test/src"
-  }
+  },
+  "plugins": [
+    {
+      "name": "./out/src/Plugin.js",
+      "option": {
+        "replaces": [
+          {"from": "^src/", "to": "out/src/"}
+        ]
+      }
+    }
+  ]
 }

package.json

@@ -12,7 +12,8 @@
   "scripts": {
     "build": "node ./script/build.js",
     "test": "node ./script/test.js",
-    "test-es5": "node ./script/test-es5.js"
+    "test-es5": "node ./script/test-es5.js",
+    "esdoc": "./node_modules/.bin/esdoc -c esdoc.json"
   },
   "devDependencies": {
     "babel": "^5.8.20",